| Superconductivity without Inversion Symmetry: MnSi versus PA Frigeri, DF Agterberg, A Koga, M Sigrist Physical review letters 92 (9), 097001, 2004 | 851 | 2004 |
| Orbital-selective Mott transitions in the degenerate Hubbard model A Koga, N Kawakami, TM Rice, M Sigrist Physical review letters 92 (21), 216402, 2004 | 388 | 2004 |
| Quantum Phase Transitions in the Shastry-Sutherland Model for A Koga, N Kawakami Physical Review Letters 84 (19), 4461, 2000 | 260 | 2000 |
| Quantum phase transitions in the Hubbard model on a triangular lattice T Yoshioka, A Koga, N Kawakami Physical review letters 103 (3), 036401, 2009 | 169 | 2009 |
| Spin, charge, and orbital fluctuations in a multiorbital Mott insulator A Koga, N Kawakami, TM Rice, M Sigrist Physical Review B—Condensed Matter and Materials Physics 72 (4), 045128, 2005 | 121 | 2005 |
| Stability of a metallic state in the two-orbital Hubbard model A Koga, Y Imai, N Kawakami Physical Review B 66 (16), 165107, 2002 | 82 | 2002 |
| First-order quantum phase transition in the orthogonal-dimer spin chain A Koga, K Okunishi, N Kawakami Physical Review B 62 (9), 5558, 2000 | 79 | 2000 |
| Superconductivity on a quasiperiodic lattice: Extended-to-localized crossover of Cooper pairs S Sakai, N Takemori, A Koga, R Arita Physical Review B 95 (2), 024509, 2017 | 75 | 2017 |
| Superconductivity in non-centrosymmetric materials M Sigrist, DF Agterberg, PA Frigeri, N Hayashi, RP Kaur, A Koga, I Milat, ... Journal of magnetism and magnetic materials 310 (2), 536-540, 2007 | 75 | 2007 |
| Ground-state and Thermodynamic Properties of an S = 1 Kitaev Model A Koga, H Tomishige, J Nasu Journal of the Physical Society of Japan 87 (6), 063703, 2018 | 71 | 2018 |
| Frustrated Heisenberg antiferromagnet on the pyrochlore lattice A Koga, N Kawakami Physical Review B 63 (14), 144432, 2001 | 70 | 2001 |
| Finite-temperature Mott transitions in the multiorbital Hubbard model K Inaba, A Koga, S Suga, N Kawakami Physical Review B—Condensed Matter and Materials Physics 72 (8), 085112, 2005 | 67 | 2005 |
| Antiferromagnetic order in the Hubbard model on the Penrose lattice A Koga, H Tsunetsugu Physical Review B 96 (21), 214402, 2017 | 65 | 2017 |
| Correlation effects in two-dimensional topological insulators Y Tada, R Peters, M Oshikawa, A Koga, N Kawakami, S Fujimoto Physical Review B—Condensed Matter and Materials Physics 85 (16), 165138, 2012 | 64 | 2012 |
| High-harmonic generation in one-dimensional Mott insulators Y Murakami, S Takayoshi, A Koga, P Werner Physical Review B 103 (3), 035110, 2021 | 63 | 2021 |
| Competing spin-gap phases in a frustrated quantum spin system in two dimensions Y Takushima, A Koga, N Kawakami Journal of the Physical Society of Japan 70 (5), 1369-1374, 2001 | 60 | 2001 |
| Incipient and well-developed entropy plateaus in spin- Kitaev models J Oitmaa, A Koga, RRP Singh Physical Review B 98 (21), 214404, 2018 | 58 | 2018 |
| Low-temperature properties of the infinite-dimensional attractive Hubbard model A Koga, P Werner Physical Review A—Atomic, Molecular, and Optical Physics 84 (2), 023638, 2011 | 57 | 2011 |
| Field-induced phase transitions in a Kondo insulator T Ohashi, A Koga, S Suga, N Kawakami Physical Review B—Condensed Matter and Materials Physics 70 (24), 245104, 2004 | 56 | 2004 |
| Phase diagrams of the two-orbital Hubbard model with different bandwidths K Inaba, A Koga Physical Review B—Condensed Matter and Materials Physics 73 (15), 155106, 2006 | 54 | 2006 |
